Pammel — Anatomical Characters of Seeds of Leguminosae. 143 

 LupiNus PUsiLLus, Pursh. 



PI. IX. f. 1-2. 



The testa and endosperm of this species measure 124.5 //. 

 The Malpighiau cells and the osteosclerids are well and uni- 

 formly developed. 



Malpighian. Cuticle forms a continuous well-developed 

 layer ; cells 49.80 // long ; a broad light line occurs close under 

 the cuticularized layer. This la3'er colors blue with chlor- 

 iodide of zinc. The cell-cavity is large at the lower end with 

 wavy margins, and contains small protein grains. 



Osteosclerid. The cells have thick walls and a narrow 

 cavity, as wide above as below, and a constriction in the 

 middle with a large intercellular space between the cells. 



Nutrient. This layer is but slightly developed ; cell- walls 

 thin, and the cell-cavity contains granular contents; it con- 

 tains the vascular elements. 



Endosperm. In the seed studied, which was not quite 

 mature, development had progressed far enough to show 

 thick-walled cells such as usually occur in the lower part of 

 the endosperm next to the cotyledons. 



Embryo. Cells of first row with greatly thickened exterior 

 cell- walls; lateral walls thinner; the remaining cells with 

 thinner walls, irregular, with intercellular spaces. Palisade 

 cells of superior face consist of three to four rows. Cells 

 rich in protein which is contained in the oil plasma. Starch is 

 absent. — (Wyoming, Nelson, Mo. Bot. Gard.) 



LUPINUS ALBUS, L. 



PI. IX. f. 3. 



Testa strongly developed, 415 // thick. The pigment layer 

 is much more conspicuous than in L. pusillus. 



MaJpigJiian. Cells are 140 // long. The cuticle forms a 

 continuous, somewhat irregular layer ; broad light line below 

 the cuticle. Several light lines have been distinguished in this 

 species. Numerous canals project into the cell-wall ; cavities 

 irregular, very narrow, containing granular contents. Below 

 the middle the wall shows a deflection, hence appearing 

 somewhat geniculate. 



Osteosclerid. Layer strongly developed ; thick walls with 



